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Detection of porphyry copper deposit using natural electromagnetic fields
Detection of porphyry copper deposit using natural electromagnetic fields
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机译:利用自然电磁场检测斑岩铜矿
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摘要
A method for identifying a possible porphyry copper deposit which includes flying an airborne sensor over a survey area measuring natural electromagnetic fields in the survey area, and then determining, in dependence on the measured natural electromagnetic fields, if one or more sub-areas in the survey area have a resistivity pattern that corresponds to a predetermined resistivity signature for a porphyry copper deposit. The predetermined resistivity signature includes a higher resistivity inner region at least partially surrounded by a lower resistivity outer region.
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